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I go through two double lane roundabouts almost daily. Me and my fellow motorists all figured it out pretty quickly and traffic flows smoothly. I have not seen a wreck in those roundabouts but have at the lighted intersection a 1/2 mile down the road.
Two-lane roundabout is not bad. I recall one in the British Virgin Islands that I really detested. Heavy traffic, three lanes, clockwise roundabout (a drive on left nation), but rental cars are American style (driver on left).
Agreed. I used them daily - single-lane and double-lane ones - as they are increasingly in number in the Twin Cities. No more back ups at busy intersections, fewer accidents and close calls.
Frankly, if navigating a roundabout is an issue, it is time to quit driving yourself around. It is incredibly simple.
No, The red car must stay in it's lane unless signaling a turn, and then doing so without impeding the blue car if it is already in the roundabout. If the blue car is NOT already in the roundabout, then the red car can change lanes - signaling first.
Likewise, if the red car is in the inner lane, the blue car can enter the roundabout in the outer lane without stopping or yielding.The blue car must wait until the red car is clear of both lanes before entering. To me this is the most difficult part and the part that is critical if (since) there is no lane changing permitted.
The key that most people miss and mis-understand is that all cars must be in the proper lane when entering the roundabout for the direction they want to exit. You should not enter the inner lane - from the inner lane approach - when you want to immediately exit the roundabout at the next exit.
Apparently, I have gotten away with some slightly bad stuff... The text in red above seems to be errant in some (most, all?) states. The green is new (correction) text. All cars must stay in their lane and there should be no lane changing! The other key that makes this work is slow speed and absolutely no passing.
There. This correction should make this as clear as most roundabouts now! For me, the confusion is that some multi-lane roundabouts have dashed lines between the left and right lanes in all four quadrants and that makes it looks like you can indeed change lanes. Maybe it is that way in some states, but I am not sure.
Best you all consult the local highway department.
Last edited by blktoptrvl; 09-13-2018 at 12:52 PM..
Keep the blue and red cars coming from the bottom, the red car at the bottom goes right..
Now.. Say that there is a blue car that enters from the top (outside lane) and is driving slower than the red.. Whatever.. the red car catches up to them and is going to the left(From his original perspective), but the blue car that enters from the top is going straight through.
What am I missing here? There HAS to be something more to this that I'm not catching here, because this seems to be designed to cause carnage.
Is the blue car entering from the top, even though they are in the outside lane, supposed to wait until all traffic in all lanes is clear before entering?
this would make sense, and the road markings seem to indicate that the right lane MUST turn right.. But allowing that lane to go straight.. I don't see how this works.
That scenario would cause absolute chaos in my area. People around here can't even figure out single lane traffic circles.
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